Tramadol is synthetic opioid so it is a narcotic per say(fentanyl, sufenta, alfentanil etc are all synthetic opioids), but is highly receptor specific so there is very little problem with respiratory depression, dependence etc.
The Smithsonian Institution (/smÉªÎ¸ËsoÊniÉn/ smith-SOE-nee-Én), established in 1846 for the increase and diffusion of knowledge, is a group of museums and research centers administered by the Government of the United States.
The Smithsonian Museums in Washington, DC are world class attractions with a variety of exhibits ranging from a 3.5 billion-year-old fossil to the Apollo lunar landing module. Visitors enjoy examining more than 137 million objects, including many irreplaceable historic artifacts, works of art, scientific specimens and cultural exhibits. Admission to all of the Smithsonian museums is free. With 19 museums and galleries, there truly is something for everyone.